configure script does not handle --with-darwinssl correctly?

From: Vadim Grinshpun via curl-library <curl-library_at_cool.haxx.se>
Date: Sun, 6 Jun 2021 00:28:17 -0400

Hi,

I've been trying to get curl to build on a Mac (11.4/Big Sur) with
Secure Transport support, and ran into what I believe is surprising
behavior of curl's configure script.

The configure script is invoked with the "--with-darwinssl" option, but
then the message below is shown, and curl winds up being built without
SSL support at all:

    configure: WARNING: SSL disabled, you will not be able to use HTTPS,
    FTPS, NTLM and more.
    configure: WARNING: Use --with-openssl, --with-gnutls,
    --with-wolfssl, --with-mbedtls, --with-nss, --with-schannel,
    --with-secure-transport, --with-mesalink, --with-amissl,
    --with-bearssl or --with-rustls to address this.

The docs <https://curl.se/docs/install.html> seem to indicate that
--with-darwinssl and --with-secure-transport should be equivalent,
however the above message disagrees.


The curl version is 7.77.

The summary of configure's output is at the end of the email, in case
it's useful.

The exact configure script invocation is:
    ./configure --prefix=/opt/local --disable-silent-rules --enable-ipv6
--without-brotli --without-cyassl --without-gnutls --without-gssapi
--without-libgsasl --without-libmetalink --without-librtmp
--without-libssh2 --without-mbedtls --without-nghttp2 --without-nss
--without-ssl --with-darwinssl --disable-ares --disable-ldap
--disable-ldaps --with-libidn2=/opt/local --with-zlib=/opt/local
ac_cv_prog_AWK=/usr/bin/awk --without-ca-bundle


The build is actually run in the context of a MacPort install command,
but I don't think MacPorts is doing anything unusual here; the exact
invocation was:
     sudo port -s  -v install curl +darwinssl

Could this be a bug? Or is there something wrong with how the configure
script is being invoked?

Thanks for any help, and let me know if more info is required.

-Vadim G.

----
configure: Configured to build curl/libcurl:
   Host setup:       x86_64-apple-darwin20.5.0
   Install prefix:   /opt/local
   Compiler:         /usr/bin/clang
    CFLAGS:          -pipe -Os -mmacosx-version-min=11.0 
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -arch 
x86_64 -Qunused-arguments -Werror=partial-availability
    CPPFLAGS:        -isystem /opt/local/include 
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk -isystem 
/opt/local/include
    LDFLAGS:         -L/opt/local/lib -Wl,-headerpad_max_install_names 
-Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX11.sdk 
-arch x86_64 -framework SystemConfiguration -L/opt/local/lib 
-L/opt/local/lib
    LIBS:            -lidn2 -lpsl -lzstd -lz
   curl version:     7.77.0
   SSL:              no 
(--with-{openssl,gnutls,nss,mbedtls,wolfssl,schannel,secure-transport,mesalink,amissl,bearssl,rustls} 
)
   SSH:              no      (--with-{libssh,libssh2})
   zlib:             enabled
   brotli:           no      (--with-brotli)
   zstd:             enabled (libzstd)
   GSS-API:          no      (--with-gssapi)
   GSASL:            no      (--with-gsasl)
   TLS-SRP:          no      (--enable-tls-srp)
   resolver:         POSIX threaded
   IPv6:             enabled
   Unix sockets:     enabled
   IDN:              enabled (libidn2)
   Build libcurl:    Shared=yes, Static=yes
   Built-in manual:  enabled
   --libcurl option: enabled (--disable-libcurl-option)
   Verbose errors:   enabled (--disable-verbose)
   Code coverage:    disabled
   SSPI:             no      (--enable-sspi)
   ca cert bundle:   no
   ca cert path:
   ca fallback:
   LDAP:             no      (--enable-ldap / --with-ldap-lib / 
--with-lber-lib)
   LDAPS:            no      (--enable-ldaps)
   RTSP:             enabled
   RTMP:             no      (--with-librtmp)
   Metalink:         no      (--with-libmetalink)
   PSL:              enabled
   Alt-svc:          enabled (--disable-alt-svc)
   HSTS:             no      (--enable-hsts)
   HTTP1:            enabled (internal)
   HTTP2:            no      (--with-nghttp2, --with-hyper)
   HTTP3:            no      (--with-ngtcp2, --with-quiche)
   ECH:              no      (--enable-ech)
   Protocols:        DICT FILE FTP GOPHER HTTP IMAP MQTT POP3 RTSP SMTP 
TELNET TFTP
   Features:         AsynchDNS IDN IPv6 Largefile PSL UnixSockets 
alt-svc libz zstd

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Received on 2021-06-06